Manufacture of glassware.



K. E. PEILER.

MANUFACTURE 0F GLASSW'ARE. l APPLICATION min :uw 3. 191,5.

Patented Mar. 12, 1918.

2 SHEETS-'SHEET I.

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K. E. PEILER. wmnmcnma of GLAsswAnEl.

MPLICATION FILED IULY 3.1915. y

- s'ra'rEs PATENT OFFICE.

Kann-Ernani?, orvnanrronn, CONNECTICUT, AssreNo'n 'ro mrronn-rarnmonr e `COMPANY, or GANAJOHAEIE, NEW Yoan, A coEroEA'rIoN or NEW Yoan.

MANUEAGTURE or GLAssWAEE.

To all whom t mag/"concern:

Be it known that I, KARL Fernen-la citizen 4of ythe United States, residing at Hartford, inV the V'county of Hartford and State of Connecticut, have invented new and L' glass are preliminarily shaped into a blank known as a parison, usually by Vpressing or in which the mouth portion et the `.waren is approximately completed, leavlng` the body and bottom portion torbe finally shaped by a blowing mold to which the arison is then transferred while Asuspended y the neck or mouth portionby means of amold ring or vplungerengaging.beneath an external or i11- ternal shoulder ofthe head 4orneck portion of the parison. 'In some instances, the parison is lifted out of -the parison mold and moved bodilysidewiseA to Vthe blowing mold,

'while in other .instances the blowing mold v is' substituted forthe parison mold'while-A the parison is thus-suspended without movinuit sidewise.

' order to release the shoulder o-the @supporting mold ringer plun erfrom beneath the supported shoulder o the finished ware, the mold ring or plunger is made with movable sections usually hinged together or .are otherwise movable to disengage the parison, and the manipulation -of -these sections usually requires additional orspecial mecha- *nism. Moreover, the joints vbetween these hinged movable sections allow of the forma-- tion of fins or ridges in the finished ware,-

`* which cannot be tolerated 'for the making 4'of ware which requiresa'smooth exterior rim, or sealing seat, for which. urpose vit is necessary to employ a-solid mo d ring hav- Ya smooth unjointed rm' Y surface.

\ bviousl V.such a" solid mol not'beemp yed for suspending theY ariso by extending beneath apermanent l oulderl of the ware, even if the latter were provided with such a shoulder, 'since that shoulder Speeicationlof Letters faten't. Appuuauunalea my s, 1915.' seal No. 37,847.

ring could Patented Mar. 12, 1918.

sary for producing a smooth rim or sealing seat could not .be employed for supporting such a parison while transferring it from its parison mold to its blowing mold.

The object of the present inventionis to provide aymethod andmeans wherebyV parisons maybe transferred from'a parison mold to. a blowing mold without utilizing 'or requiring 'any external shoulder or any permanent shoulder anywhere upon the ware by which to support it, and which may be `employed for the blowing of ware either necked or neckless upon existing types of 'glass shaping machinery, with practically no additionalparts or mechanism.

Inaccordance with this invention, the parison is prelirninarilyl formed with an internal temporary supporting shoulder in an uncompleted portion of its wall engaging with a plunger or blowing member by means of which the parison Vis transferred to the blowing mold, after which the regular blowing operation in expanding and stretching'the wall of the 'body portion ofthe ware expands the shoulder outwardl' and circumferentially of the blank, thus eeing it Afrom the plunger, and enabling the Ilatter to be withdrawn. The bead or shoulder if not 4required or desired in the finished ware may be wholly merged or absorbed into the wall plunger, -in their pressing relation to a paril son. Fig. 2 is a side elevation showing `the parison-and its mold ring supportedb the plunger while transferring them' to a low ing mold. Fig. 3 is, a, side elevation also in section showing the parison mold rin and plunger of Fig. 2 deposited in a su stantially cylindrical blowing mold, in'readiness forthe blowing operation. Fi 4 is a view similar to that of Fig. 3, showing the blank expanded bythe blowing operation to its ultimate form, leaving the lunger free to bewithdrawn. Fig 5 1s an evatimrmainll;7 in# cross-section taken through its longitudinal `center, showing the application` of this invention'to a shouldered Jar. Fig. 6 is a similar cross-sectional elevation showing the applicationof this invention to methods and apparatus in `which the parison is formed by suction which draws the molten glass into the parison mold, A

The temporary shoulder of the parison upon which it is supported while being transferred from the parison mold to the blowing mold, is formed by pressing or extruding a portion or portions of its plastic surface into a recess or recesses formed in the wall of the `parison forming instrumentalities. What is considered the preferable form of shoulder, illustrated in these drawings, is formed by a circumferential ba'nd or bead, which is formed by being pressed .into a correspondingly shaped groove in the outer wall of the plunger. The bead or shoulder is formed far enough below the head or neck of the jar and in suitable'relation to the body of the jar, so that the subsequent expansion of the body will carry the bead out of its groove in the plunger by which it is formed, and by which it was supported during the parison transferring or mold changing operation.

In the illustration shown in Figs. 1 to 4 inclusive, molten glass is formed into the parison 6 by pressing action between the plunger 7 the parison mold 8 and the mold ring 9, which as explained at the outset may be solid, so as to form a smooth sealing seat,

as when the resulting ware is to be hermetically or otherwise tightly sealed. Theplunger 7, having an external contour suit.- able, for the desired parison is provided on its external surface with one or more y'recesses or depressions for receiving and thusA forming the temporary'supporting shoulders of the parison. For the forming of the circumferential bead 12 of the parison 6, the plunger is provided with a correspondingly shaped circumferential groove 13, into which a portion of the molten glass is extruded by preing action between the plunger and the parlson mold, as illustrated in Fig. 1.- Onlythe forming end 'of the plunger is here shown, its. supporting and manipulating portions belngof any customary or desired form. For example1 the upper end of the' plunger may be extended in the form of a quill or shell, or may be attached to agate or yoke 'or cross head of the machine with which Iit is to be employed according to the type of machines employed.v For complete` ness of the presentillustration the plunger' is shown adapted to be supported by a chuck 15, through which the blowing head 16 may beapplied as shown in Fig. 4, connecting with .the air passage 10 and the distributing then made between a blowing head l16 and the plunger 7 which thus becomes a blowing member, through which the blowing operation is then performed, expanding and stretching out the still plastic wall of the blank against the wall of the blowing mold,

as shown in Fig. .4. This expansion and stretching out of the wall of the parison withdraws the bead or shoulder 12 out of its groove 13 in the plunger, and if desired absorbs or distributes the bead more or less completely in the wall of the ware, leaving the plunger free to be withdrawn, and with.

its mold ring to be returned to the same or another parison' mold, to make another parison. -v

Fig. 5. illustrates the invention as applied to the making of necked or shouldered ware.

'The plunger 20 and mold ring 21 are substantially like those of the previous figures,

excepting that the mold ring in this case extends to the bottom of the enlarged collar 22 of the ware. The supporting bead or shoulder of. the parison, as .shown by the position of they plunger...groove 24, is here made at thelevel of an inner shoulder or corner 23 ofthe jar, into which the bead i merged by the blowing operation. f

Fig. 6. illustrates this invention `as applied to methods and machines in which -the parison 27 is formed by suction, drawing the charge of molten glass intothe parison mold 28, through an opening 29 in its bot tom wall. l

Various ways may be employed for applying the suction devices to the mold,J one of which' is illustrated in Fig. 6. In that case the mold ring 30'is provided with. the annular air passage 31. encircling the plunger 32 and connecting withY an -outlet 33 in .any

convenient side -or surface of the mold ring,

the outlet being preferably threaded .as

Yshown at 34, yto receive a standard pipe itting by means of which air .connectlon may be extended to the vacuum producing apparatus of the machine. The joint between the plunger 32 and the inner wall of the mold ring is made loose enough to permit the flow of air at 35 from the top of the pari? son opening to the air passage 31.. Orsuitable vertical groovesmay be made in the joint surface or surfaces suilicient to allow the airl to pass while excluding the :molten glass from following beyond the top of the parison opening.

In cases where it. isA important to avoid. leaving any appreciable trace in the finished ware of the temporary supporting bead or shoulder of the parison, the parison should .be formed of approximately uniform thickness, compensating for the `bead on the inside of the Vparison wall vby forming` a deression ron the other side of the wall as illustrated at 36 in Fig. 6, thus disposing .the .molten glass .So-.121.1% it will when expanded leave an approximately uniform thickness of wall. v

It will be understood that solid molds may be employed where the external con tour of the parison and of the inished ware permits them to be ejected through the mouth of the mold. Otherwise, split or secl tional molds are used, as shown in Figs. 5 and 6. r

These temporary supporting beads or shoulders of the parison need not be continuous or connected. As to number, depth7 form and other characteristics, they should be adapted to the size, weight and plastic condition of the glass, or other conditions of the particular parisons to be handled, or the,

machines or methods to be employed.

The term transferring as herein employed is applicable not only to those conditions in which the parison is actually moved bodily from the parison mold located in one position, to a blowing mold located in a diiferent position, but is applicable also to those conditions in which the parison is merely suspended without movement, while the parison mold or other primary shaping apparatus is taken away and the -blowing mold or other secondary shaping apparatus is substituted.

1. The method of handling parisons, which consists in forming-a parison with a temporary shoulder, supporting the parison by the said shoulder, and changing the form of the parison to detach the said shoulder from its supporting means.

2. The method 'of handling parisons which l consists in forming'a parison with a temporary shoulder, supportin the said parison by the said shoulder w ile, changing4 the forming instrumentalities and freeing the -said shoulder from its supporting means by `the subsequent forming operations.

3. rIfhe method of manufacturing glassware, vwhich consists in forming'a parison with a temporary internal shoulder, transferring the parison to a shaping mold while supported by said shoulder, and' then exfrom its transferring means by further shaping operations in the second named y forming mold.

6. Steps in the manufacture lof glassware,

which consist in forming a parison with a 7o ported by the bead to a blowing mold, 'ando expanding the parison and its bead in thel subsequent shaping operations in the said blowing mold.

8. Steps in the manufacture of hollow glassware which consist in forming a parison with a temporary supporting shoulder in the uncompleted wall of the parison, then changing the shaping devices while supporting the parison by `said shoulder,

then disengaging the shoulder from the support by the succeeding shaping operations.

9. In the manufacture of glassware, -the steps of forming a parison around a blowing member, with a temporary internal shoulder in the parison supported by the said member, then expanding the parison and its supporting shoulder away from the said member.

10. Apparatus for shaping parisons for glassware, including a plunger provided with a recess located to receive a temporary portion of the uncompleted wall ofythe parison to temporarily' support theparisonl by the plunger, and means for reshaping the said temporary portion to release it from the said recess.

`11. Apparatus for shapingand transfer- .ring parisons for glassware, including a provided with' an annular 110 shaping plunger recess locate 'to temporarily receive in' pressed portions of theuncompleted wall of' the parison to temporarily support the parison while transferring it lto other shaping devices, and means for reshaping the un- 115 completed wall to release the said 1n-pressed portlon of said recess.'

12. Apparatus for shaping and transferring parisons, including a parison mold and l 4 plunger, theplunger being provided with an annularly disposed recess located to receive a temporarily n-pressed ortion of i. the parison in the parison forming operation,and :a reshapin mold having an an'- nularspace substantially opposite the said nressed portion whenpthe' parison isin res aping position therein, for receiving the glass displaced by the reshaping of the prone son tofrelease the in-pressed portion m w theplunger.

panding the Vparison to release the said shoulder from its supporting means. w

4. In the 'manufacture of lassware, the steps of forming a? parison with an internalY temporary sho der, transferringthe arison supported b its temporary shou der, and then expan in the parison and with it, the temporary s oulder, to release the shoulder from its supporting transferring 5. Steps in the manufacture of glassware, which cmsist in pressing a parison in a forming mold 'with a temporary supporting shoulder in engagement with transferring means then transferring the blank by sai shoulder by said means to another forming 13. A parison mold, a plunger for the said mold having upon its circumference a recess located vto receive a temporarily inpressed portion of the lastic inner wall of the parison, and a res apingmold having a space outside of and substantially opposite .the in-pressed portion of the parison suicient to receive the glass displaced by the reshaping of the parison to release the said in-pressed portion from the plunger.

let. The combination of a blowing member having a recess upon its side surface, means for forming a parison of molten glass around the said p unger, whereby a portion of the plastic glass is temporarily formed in the said recess, anda blowing mold for receiving the parison, having a space between its side Wall and the said side surface of the member suilicient. for receiving the glass displaced ,from the said recess by the blowing operation.

Signed at Hartford, Connecticut, this 2nd day of July, 1915.

. KARL E. PEILER. f,

It is hereby certified that in Lettere Patent No. 1,259,281, granted March 12,

1918, upon the application of Karl E. Peiler, of Hartford, Connecticut., for an lllillprovfement in The Manufactum of Glassware, an error appears in the printed specification requiring correction as .followsz Page 3, line 117, claim 11, for the word of read from; and that the said Letters Patent should be reed with this corrtion therein that the same may conform to the record of the oase in the Patent Omoo.

Signed and sealed this 16th day of April, A. D., 1918.

laan.) F. W. H. CLAY,

Acting Commissioner of Patents. Cl. 49-9. 

